ncurses 5.7 - patch 20100417

ncurses 5.7 - patch 20100417

+ modify _nc_capcmp() to work with cancelled strings.
+ correct translation of "^" in _nc_infotocap(), used to transform
  terminfo to termcap strings
+ add configure --disable-rpath-hack, to allow disabling the feature
  which adds rpath options for libraries in unusual places.
+ improve CF_RPATH_HACK_2 by checking if the rpath option for a given
  directory was already added.
+ improve CF_RPATH_HACK_2 by using ldd to provide a standard list of
  directories (which will be ignored).